ToolTipRectangle.java Source code

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Here is the source code for ToolTipRectangle.java

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/*******************************************************************************
 * Copyright (c) 2000, 2004 IBM Corporation and others.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:
 *     IBM Corporation - initial API and implementation
 *******************************************************************************/
//package org.eclipse.swt.snippets;
/*
 * Tool Tips example snippet: show a tool tip inside a rectangle
 *
 * For a list of all SWT example snippets see
 * http://www.eclipse.org/swt/snippets/
 */
import org.eclipse.swt.SWT;
import org.eclipse.swt.graphics.Color;
import org.eclipse.swt.graphics.GC;
import org.eclipse.swt.graphics.Rectangle;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Event;
import org.eclipse.swt.widgets.Listener;
import org.eclipse.swt.widgets.Shell;

public class ToolTipRectangle {
    public static void main(String[] args) {
        Display display = new Display();
        final Color[] colors = { display.getSystemColor(SWT.COLOR_RED), display.getSystemColor(SWT.COLOR_GREEN),
                display.getSystemColor(SWT.COLOR_BLUE), };
        final Rectangle[] rects = { new Rectangle(10, 10, 30, 30), new Rectangle(20, 45, 25, 35),
                new Rectangle(80, 80, 10, 10), };
        final Shell shell = new Shell(display);
        Listener mouseListener = new Listener() {
            public void handleEvent(Event event) {
                switch (event.type) {
                case SWT.MouseEnter:
                case SWT.MouseMove:
                    for (int i = 0; i < rects.length; i++) {
                        if (rects[i].contains(event.x, event.y)) {
                            String text = "ToolTip " + i;
                            if (!(text.equals(shell.getToolTipText()))) {
                                shell.setToolTipText("ToolTip " + i);
                            }
                            return;
                        }
                    }
                    shell.setToolTipText(null);
                    break;
                }
            }
        };
        shell.addListener(SWT.MouseMove, mouseListener);
        shell.addListener(SWT.MouseEnter, mouseListener);
        shell.addListener(SWT.Paint, new Listener() {
            public void handleEvent(Event event) {
                GC gc = event.gc;
                for (int i = 0; i < rects.length; i++) {
                    gc.setBackground(colors[i]);
                    gc.fillRectangle(rects[i]);
                    gc.drawRectangle(rects[i]);
                }
            }
        });
        shell.setSize(200, 200);
        shell.open();
        while (!shell.isDisposed()) {
            if (!display.readAndDispatch())
                display.sleep();
        }
        display.dispose();
    }
}